I can post dimensions/instructions on the box if you want......but it really is pretty easy. I used a table saw and a scrollsaw (not jigsaw, cut radius was too tight) and a cordless drill to make mine. And the laser for customization, but you can just use that cover for a home for all your performance stickers.
If you look at my maxifuse relay center above the firewall, you'll see where my stickers went
I'm NOT gonna make any more of these. I don't have the time. Ok, I MIGHT make kits, but don't count on it any time soon. Wait until I get temp/performance numbers off it, and make any final adjustments.